Apparatus for preparing syrup for confectionery.



No. 688,205. Patented Dec. 3; 190L- E. SHAW. APPARATUS FOR PREPARING SYRUP FOR CONFECTIONERY (Application filed Oct. 10, 1898.) P

6 Sheets-Sheet I.

(No Model.)

Z2 ven [o r "No. 688,205. Patnted Dec. 3, I9Dl.

. E. SHAW. APPARATUS FOR PREPARING SYRUP FOR CONFEGTIONERY.

(Application filed Oct. 10, 1898.) (No Model.) 6 Sheets-Sheet 2.

Witnesses nvnfor:

m2 scams FEYERS co, Prvormwmo WASHYNGTON, n. t:v

No. 688,205. Patented Dec. 3, I901. E. SHAW.

APPARATUS FOR PREPARING SYRUP FUR CONFECTIONERY.

{Ayplieation filed Oct. 10, 189B.)

6 Sheets-Sheet 3.

(No Model.)

zzvenlor min @8885 atg no. 688,205. Patented Dec. 3, mm. E. SHAW.

APPARATUS FOR PREPARING SYRUP FOR CONFECTIONERY.

' A lication filed Oct. 10, 1898.) (No Model.) 6 Sheets-$heet 4.

Ina/calm" THE Nomrs pzwzns co. PHQTO-LIATNO, WASHINGTON. n. c,

No. 688,205. Patented Dec. 3. I901. E. SHAW.

APPARATUS FOR PREPARING SYRUP FOR GUNFECTIONERY.

(Application filed Oct. 10, 1898.) (No Model.) 6 Shaeis-$heet 5.

No. 688,205. Patented Dec. 3, l90l.

E. SHAW.

APPARATUS FOR PREPARING SYRUP FOR CONFECTIONERY.

(Application filed Oct. 10, 1898.)

(No Modci.) 6 Sheets-Sheet 6.

7fitzzesses Inventor V W Q Cg my we mums PETERS co. wow-Una. w-smuarom n c.

UNlED STATES PATENT OFFICE.

EDWARD SHAXV, OF LONDON, ENGLAND.

APPARATUS FOR PREPARING SYRUP FOR CONFECTIONERY.

SPECIFICATION formingpart of Le'tters lat'ent No. 688,20 5,'dated December 3, 1901. Application filed October 10, 1398. Serial No. 693,166. (No model.)

To all whom it may Concern: Valve being provided between the chamber Be it known that I, EDWARD SHAW, a suband the pump, which is periodically closed, ject of the Queen of Gr'eatBritain and Ireland, so as to cause the required temporaryincrease 5 residing at' Broad street, London, England, of pressure.

5 have invented Improvements in Apparatus In some casesinstead of the spring or weight- Suitable for Preparing Syrup for Use in the loaded pressure-regulating valve above re- Manufacture of Sweetmeats, of which the folferred to being placed between the separatlowing is a specification. ing-chamber and the air-pump it may be 0 This invention has reference to improveplaced between the coil and the separatingro ments in apparatus of the kind in which syrup, chamber.

which may consist of sugar, glucose, or a mix- Preferably the pressure-regulating valve is 'ture thereof, is forced through an externallyprovided with means for periodically closing heated tube, so as to convert the water in the it, in which case this one valve acts both-to syrup into steam or vapor. With apparatus regulate the pressure and also to cause peri I; of this kind it sometimes happens that the odical increase of pressure, as desired.

syrup at some part of its passage through the Referring to the accompanying drawings, tube becomes overheated, and consequently Figures 1 and 2 are elevations at right angles discolored, owing to excessive pressure aristo each other of a construction of apparatus ing in the tube, and, further, the syrup somcaccording to thisinvention. Fig. 3 is a ver- 26 times becomes so far cooled as to cause the tical section of the cooking-coil and collectvapor or steam to condense and the water of ing-chamber. Fig. 4 is a horizontal section condensation to again become mixed with the of the same. Fig; 5 is a sectional view of one syrup previous to its discharge from the apof the valves controlling the withdrawal of paratus. Now objects of this invention are vapor from the collecting-chamber; and Figs.

95 to avoid these disadvantages, for which pur- 6, 7, and 8 are respectively a sectional end pose I provide such apparatus with means, elevation and two side elevations with parts such as a pump, for exhausting air or vapor, removed of means for imparting motion to so arranged as to maintain the pressure in the said valve. the tube at or slightly above that of the at- 1 is a tank for containing uncooked syrup, 3o mosphere. and 2 is a pump by which the syrup is fed to One arrangement of apparatus comprises a the cooking-coil 3, which is contained within steam-heated coil through which syrup is a dome shaped chamber 4, charged with forced by a pump and which discharges into steam for heating the coil 3. The coil 3 disaseparating-chamber the upper part of which charges into the bottom of a collecting-cham- 35 is in communication with an air-pump, comher 5, that is also contained within the steammunication between the chamber and the chamber 4 and the upper portion of which pump being controlled by a suitable spring is connected by a pipe 6, controlled by a or weight-loaded valve that is so regulated as valve 7 ,to a jet-condenser 8, which communigo to open when the pressure in the chamber cates with an air-pump 9. The chamber 5 4e rises, say, to half a pound above that of the has a discharge-passage 10, thatis controlled atmosphere and to close as soon as it falls beby an outwardly-opening valve 11., normally low that pressure. kept 'against its seat by a spring 11, or it Thesyrup maybe withdrawn from the sepamay be by a weight or by other means. The rating-chamber in any convenient way. For valve 7 is held against its seat by a spring 7 45 instance, it may be allowed to flow by gravthe spring being so adjusted, as by a screwed ity through an opening in the bottom of the spindle 7, working through a nut 7", that chamber, said opening being fitted with a the valve will open upon the pressure in the regulating-valve, or said opening may be fitchamber 5 rising to, say, half a pound above ted with a suitably-loaded valve, through that of the atmosphere. This valve 7, which 50 which the syrup is forced only when the presis shown in section in Fig. 5, is adapted to sure in the separating-chamber is sufiicient be operated intermittently, so as to close for to overcome the load on said valve, another a given period communication between the collecting-chamber 5 and the condenser and the air-pump, thus temporarily preventing the steam generated within the coil from escaping from the chamber 5 and causing an increase of pressure therein. The pressure of the steam on the syrup eventually overcomes the resistance of the valve 11 and forces the cooked syrup through the outlet 10 onto a cooling table or slab 12. To enable this to be done, the spindle 7 and nut 7 are adapted to slide endwise, the nut being prevented from rotating by a guide 7. After the syrup has been discharged the valve 7 is again operated, so as to reestablish comm unication between the chamber 5 and the 0011- denser and air-pump, thereby causing the pressure in said chamber to be reduced below that of the atmosphere and the valve 11 to be again closed. The valve 7 maybe operated periodically in any convenient way; but in the example illustrated the feed-pump 2 is provided with means (illustrated in Figs. 6, 7, and 8) for imparting motion to the valve 7. Thesemeans comprise a couple of ratchetwheels 12 13, which are driven by pawls 14:, carried by levers 15, that are rocked by tappet-levers 16 and tappets on the piston-rods of the pump. The ratchet-wheels carry driving-studs 12 13, that come into contact with pins or abutments 17 17 on opposite sides of the fulcrum of one of two levers 18 18", that are coupled together by a stirrup-piece 19, that is connected by a rod or link 20, which is provided with an inclined surface or cam '7 so arranged that when the rod or link is operated in one direction the inclined surface bears against the end of the spindle 7 and forces it endwise, so as-to increase the pressure on the spring and hold the valve 7 closed, while when operated in the other direction the inclined surface is drawn away from the end of the spindle 7 and the spring allowed to act with the desired predetermined pressure. 'The arrangement is such that the valve is opened and closed at the required times. If desired, the valve 11 may be arranged to be similarly operated at the required times instead of operating automatically.

The collecting-chamber 5 is arranged inside the steam-chamber 4:, so that the steam which supplies heat for cooking the syrup may also serve to maintain the temperature of the cooked syrup and the steam or vapor contained in the chamber 5.

The chamber 4 is detachably connected by bolts to a base-plate 4, so that it can be readily lifted and the coil 3 and collecting-chamber 5 exposed for inspection or repair. The baseplate 4 has cast on its upper side a circular rim 4", into which the copper cylinder forming the chamber 5 is screwed. It is also formed with a passage 4, leading from the coil 3 to the chamber 5, and with a passage 4, by which the pipe 6, whose upper end opens into the upper part of the chamber 5 and is provided with a baffle-plate 6 to preceases vent the entry of bubbles of syrup, is placed in communication with the condenser.

4 and M are passages or apertures through the base-plate 1 through which syrup and steam, respectively, are supplied to the coil 3 and to the chamber 4. The outlet 10 is at the bottom of a depression or well formed in the base-plate 4 and in which the syrup collects. The seat of the valve 11 is formed with an inwardlyextending portion that serves to support the valve-spindle and its spring 11, as shown, the arrangement being such that the seat and valve can be screwed into and out of the base-plate. The condenser is' preferably formed in the column supporting the cooking-chamber. With such an arrangement not only is excessive pressure in the cooking portion of the apparatus avoided, but condensation of the steam that is separated from the syrup in the separating-chamber is prevented by the heated walls of said chamber and the inconvenient discharge of steam within the factory or the use of long exhaust-pipes is obviated. Moreover, the water is removed from the syrup at a temperature which is lower than is possible when cooked in apparatus of the kind comprising an open-ended externally-heated tube or coil, but at a higher temperature than is the case when the syrup is cooked in a vacuum pan or apparatus, the result being that the goods produced are not only of excellent color, but will stand high temperatures without deterioration.

My present invention pertains to means for maintaining a constant predetermined pressure in the tube and separating-chamber and which is here described as being used in connection with an apparatus with a pressure above the pressure of the atmosphere. However, I do not wishto be understood to limit my invention to this particular application, for the regulating device can be advantageously used in an apparatus in which the pressure is below that of the atmosphere. In either event, however, the pressure of the liquid-discharging valve will be greater than that of the regulating -valve, whereby the regulating-valve is normally open, (when the apparatus is in operation,) and the regulating-valve is so constructed that its pressure can be made to periodically exceed the pressure of the liquid-discharging valve to cause the delivery of the liquid from the separating-chamber.

What Iclaim is- 1. An apparatus for preparing syrup for confectionery comprising an externally-heated cooking-tube, a closed separating-chamber separate from but in communication with IIO said cooking-tube, said chamber having a pressure-escape passage, a pressure-escape valve controlling said passage and thereby controlling the pressure within said separating-chamber, said chamber having also a liquid-escape passage, and a pressure-regulated valve controlling said liquid-escape passage.

2. A syrup-cooking apparatus comprising an externally-heated cooking-tube through which the syrup is passed, a separating-chamber separate from but in communication with the said cooking-tube, said chamber having a pressure-regulated liquid-escape, and having also a pressure vapor-escape, and a valve for said vapor-escape adapted to be opened by the pressure within said separating-chamber when the pressure liquid-escape remains closed.

3. An apparatus for preparing syrup for confectionery, comprisingaseparating-chamber, an intermittently-controlled pressureclosed vapor-escape valve, and a pressureregulated liquid-escape for said separatingchamber, substantially as described.

4. An apparatus for preparing syrup for confectionery comprising a separating-chamber, said separating-chamber having a vapor-escape passage-Way and a liquid-escape passage way, a pressure actuated closed valve for said vapor passage-way, a pressureclosed valve for said liquid passage-way, and

an operating member for opening the pressure-closed vapor-escape valve against the pressure thereof, substantially as described.

5. An apparatus for preparing syrup for confectionery comprising a separating-chamber having a liquid-escape and a vapor-escape, a pressure-closed valve for each of said escapes, the pressure of the liquid-escape valve being of less degree than the pressure of the vapor-escape valve, and intermittentlyactuated means for opening the vapor-escape valve, substantially as described.

6. Apparatus for preparing syrup for use in the manufacture of sweetmeats, comprising a coiled tube, a collecting-chamber communicating therewith and formed with a syrup-discharging aperture, both said tube and chamber being contained within a steamcharged dome or cover, a syrup-feeding pump, an air or vapor pump, and a valve control ling communication between said chamber and the air or vapor pump said valve opening only when the pressure in the chamber exceeds atmospheric pressure and being connected to mechanism driven by the feed-pump whereby it is periodically closed, as set forth.

7. Apparatus for preparing syrup for use in the manufacture of sweetmeats, comprising a tank 1, feed-pump 2, coil 3, steam-chamber 4, collecting-chamber 5 with syrup-discharging aperture 10, vapor-pipe 6 fitted with .baffle 6 and leading to a condenser 8, an airpump 9 and a valve 7, as set forth.

. 8. Apparatus for preparing syrup for use in the manufacture of sweetmeats, comprising a tank 1, a feed-pump 2, coil 3, a collecting-chamber 5 with valved syrup-discharging aperture 10, a steam-chamber 4 inclosing both coil 4 and chamber 5, a vapor-pipe 6 fitted with baffle 6 and leading to a jet-condenser 8 arranged in the stand of the apparatus, an air-pump 9, and a valve 7 that controls communication between the chamber 5 and the condenser 8, and opens only when the prestube discharges and which has a syrup-discharging aperture, a vapor or airpump, a valve controlling communication between said collecting-chamber and vapor or air pump, and which opens when the pressure in the chamber exceeds that of the atmosphere, a rod connecting the other of said valves to a lever provided on opposite sides of its fulcrum with a pin or abutment, a couple of wheels driven by said feed-pump and each carrying a stud, the said pins or abutments being arranged respectively in the paths of the said studs, which come successively in contact with their respective studs and intera mittently rock the lever and open and close the latter valve, as and for the purpose set forth.

Signed at 2 Popes Head alley, Cornhill, London, this 21st day of September, 1898.

EDWARD SHAW. Witnesses:

PERCY E. MATTOCKS, WM. 0. BROWN.

IOO 

